Photothermally induced liquid gate with navigation control of the fluid transport

作     者：Yuhang Han Yunmao Zhang Mengchuang Zhang Baiyi Chen Xinyu Chen Xu Hou 

作者机构：State Key Laboratory of Physical Chemistry of Solid Surfacesand Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Department of PhysicsResearch Institute for Biomimetics and Soft MatterFujian Provincial Key Laboratory for Soft Functional Materials ResearchJiujiang Research InstituteCollege of Physical Science and TechnologyXiamen UniversityXiamen 361005China Tan Kah Kee Innovation LaboratoryXiamen 361102China 

出 版 物：《Fundamental Research》 (自然科学基础研究（英文版）)

年 卷 期：2021年第1卷第6期

页      面：800-806页

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：supported by the National Natural Science Foun-dation of China(Grants No.52025132,21975209) the National Key R&D Program of China(Grant No.2018YFA0209500) the Fundamen-tal Research Funds for the Central Universities of China(Grant No.20720190037) 

主　　题：Liquid gating Navigation control Photothermally induced Marangoni flow Fluid transport 

摘      要：The ability to control multiphase flows is essential for applications such as microvalves,chemical analyses,mi-croreactors,and multiphase ***,more specific controls,including the positional naviga-tion control of fluids under steady-state pressures,will improve the development of these ***,we present a fundamentally new photothermally induced liquid gating system that allows light-controlled con-tactless fluid transport and gas/liquid separations at designated locations,with seconds response times,under constant *** and theoretical calculations demonstrate the stability of our system and its novel regulation mechanism,which is based on a photothermally induced liquid-reconfigurable gate with a change in the surface/interfacial tension and Marangoni flow redistribution of the gating liquid at the illuminated *** regulation mechanism with positional navigation properties requires neither mechanical parts nor complex accessories and can further enable the miniaturization and integration of various engineering *** ap-plication demonstrations confirm the potential of this system in fields of smart valves,multiphase separations,multiphase microreactors,and beyond.